Detail publikačního výsledku

Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy

VENCL, A.; BOBIC, B.; VUCETIC, F.; SVOBODA, P.; POPOVIC, V.; BOBIC, I.

Originální název

Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy

Anglický název

Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy

Druh

Článek WoS

Originální abstrakt

Nanocomposites were synthesized via compocasting using Zn25Al3Si and Zn25Al3Si0.03Sr alloys as the matrices and nanoparticles of Al2O3 (1 wt. %) as the reinforcement. Structure of the nanocomposites was examined and their basic mechanical and tribological properties were tested. Distribution of primary silicon particles in the structure of nanocomposites has been improved compared to their distribution in the Zn25Al3Si matrix alloy due to the presence of Al2O3 nanoparticles and strontium. The primary silicon particles in the structure of the nanocomposites were found to be more fine-grained compared to the same particles in the structure of the as-cast Zn25Al3Si alloy. Tested mechanical properties of the nanocomposite with Zn25Al3Si alloy matrix are improved, compared to the matrix alloy. The nanocomposite with Zn25Al3Si0.03Sr alloy matrix is characterized with slightly higher value of compressive yield strength and a slightly lower hardness value compared to the as-cast Zn25Al3Si alloy. Both nanocomposites showed lower wear rate and higher coefficient of friction, compared to the matrix alloy, in sliding under the boundary lubricating regime. However the nanocomposite with Zn25Al3Si alloy matrix showed better tribological properties than the nanocomposite with Zn25Al3Si0.03Sr alloy matrix.

Anglický abstrakt

Nanocomposites were synthesized via compocasting using Zn25Al3Si and Zn25Al3Si0.03Sr alloys as the matrices and nanoparticles of Al2O3 (1 wt. %) as the reinforcement. Structure of the nanocomposites was examined and their basic mechanical and tribological properties were tested. Distribution of primary silicon particles in the structure of nanocomposites has been improved compared to their distribution in the Zn25Al3Si matrix alloy due to the presence of Al2O3 nanoparticles and strontium. The primary silicon particles in the structure of the nanocomposites were found to be more fine-grained compared to the same particles in the structure of the as-cast Zn25Al3Si alloy. Tested mechanical properties of the nanocomposite with Zn25Al3Si alloy matrix are improved, compared to the matrix alloy. The nanocomposite with Zn25Al3Si0.03Sr alloy matrix is characterized with slightly higher value of compressive yield strength and a slightly lower hardness value compared to the as-cast Zn25Al3Si alloy. Both nanocomposites showed lower wear rate and higher coefficient of friction, compared to the matrix alloy, in sliding under the boundary lubricating regime. However the nanocomposite with Zn25Al3Si alloy matrix showed better tribological properties than the nanocomposite with Zn25Al3Si0.03Sr alloy matrix.

Klíčová slova

Zn-Al-Si alloys, strontium, Al2O3 nanoparticles, microstructure, fractography, mechanical properties, boundary lubrication, friction, wear.

Klíčová slova v angličtině

Zn-Al-Si alloys, strontium, Al2O3 nanoparticles, microstructure, fractography, mechanical properties, boundary lubrication, friction, wear.

Autoři

VENCL, A.; BOBIC, B.; VUCETIC, F.; SVOBODA, P.; POPOVIC, V.; BOBIC, I.

Rok RIV

2019

Vydáno

05.11.2018

Nakladatel

Springer Berlin Heidelberg

ISSN

1678-5878

Periodikum

Journal of the Brazilian Society of Mechanical Sciences and Engineering

Svazek

40

Číslo

11

Stát

Brazilská federativní republika

Strany od

1

Strany do

13

Strany počet

13

URL

https://link.springer.com/article/10.1007/s40430-018-1441-9

BibTex

@article{BUT149231,
  author="VENCL, A. and BOBIC, B. and VUCETIC, F. and SVOBODA, P. and POPOVIC, V. and BOBIC, I.",
  title="Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy",
  journal="Journal of the Brazilian Society of Mechanical Sciences and Engineering",
  year="2018",
  volume="40",
  number="11",
  pages="1--13",
  doi="10.1007/s40430-018-1441-9",
  issn="1678-5878",
  url="https://link.springer.com/article/10.1007/s40430-018-1441-9"
}